Unix “find” expressions compiled to bytecode — compiling find’s expression language
TL;DR A developer explored compiling Unix find's expression language into a compact bytecode to reduce per-file work and resolve as…
LearnixOS: Step-by-step guide to building a POSIX OS in Rust
TL;DR LearnixOS is a technical, hands-on book and code collection that walks readers through implementing a POSIX-compliant operating system in…
Tachyon: High-frequency statistical sampling profiler for Python
TL;DR Tachyon is the profiling.sampling module introduced in Python 3.15 that performs high-rate statistical stack sampling to locate runtime hotspots.…
Choosing Between Codex and Claude Code: How Developers Work Differently
TL;DR A December 22, 2025 comparison finds Codex and Claude Code both highly capable for software work, but they suit…
Why package managers repeatedly fail when they treat Git as a database
TL;DR Many package managers initially used Git repositories to store package metadata and versions because it seemed convenient, but scaling…
Codex vs Claude Code: Picking the AI coding tool that matches your workflow
TL;DR A developer compares Codex and Claude Code as of Dec. 22, 2025, finding both capable of “superhuman” coding but…
Archiving Git Branches as Tags with Shell Completion and an Alias
TL;DR A git alias can convert a branch into a tag and delete the branch to keep branch lists tidy,…
Integrating an AI agent into a 7-year Rails monolith with RubyLLM
TL;DR A Director of Engineering at Mon Ami described adding an AI agent to a seven-year Ruby on Rails monolith…
Ultimate Linux: Building a Minimal Linux Userspace in Pure JavaScript
TL;DR A developer published a tiny Linux userspace implemented mostly in JavaScript and packaged as a standalone binary by transpiling…
URLPattern API: New pattern syntax for matching and extracting URL components
TL;DR The URLPattern API provides a pattern language and a URLPattern interface for matching URLs or specific URL parts and…